# Ivan Lowenthal, MD · NPI 1043245889

Medical Oncology Physician · Tamuning, GU · NPI 1043245889

Ivan Lowenthal, MD (NPI 1043245889) is listed in the NPPES registry with the specialty Medical Oncology Physician in Tamuning, GU, phone (671) 647-4656, as of the registry file of Jun 8, 2026.

Profile: https://www.gale.care/providers/gu/tamuning/ivan-lowenthal-md-1043245889
Facts changed: 2026-06-08 · hash cf92dd80f66f6ec5

## Facts

- Name: Ivan Lowenthal (NPPES registry, self-reported, 2026-06-08) {#name}
- Credential: MD (NPPES registry, self-reported, 2026-06-08) {#credential}
- Specialty: Medical Oncology Physician (NPPES registry, self-reported, 2026-06-08) {#specialty}
- Registry stage: as-listed (NPPES registry, self-reported, 2026-06-08) {#registry-stage}
- NPI issued: 2006 (NPPES registry, listed, 2026-06-08) {#npi-issued}
- Practice type: sole-proprietor (NPPES registry, self-reported, 2026-06-08) {#practice-type}
- City: Tamuning (NPPES registry, self-reported, 2026-06-08) {#city}
- State: GU (NPPES registry, self-reported, 2026-06-08) {#state}
- Phone: (671) 647-4656 (NPPES registry, self-reported, 2026-06-08) {#phone}

## Answers

- New patients (not on record): Gale has no record of whether Ivan Lowenthal, MD (NPI 1043245889) is taking new patients. Ask the office.
- Insurance (not on record): Gale has no record of which insurance Ivan Lowenthal, MD (NPI 1043245889) takes. Ask the office.
- First-visit cost (not on record): Gale has no record of what a first visit with Ivan Lowenthal, MD (NPI 1043245889) costs. Paying yourself? You can ask for a written Good Faith Estimate before the visit.
- Video visits (not on record): Gale has no record of whether Ivan Lowenthal, MD (NPI 1043245889) offers video visits. Ask the office.
- Where (self-reported): Ivan Lowenthal, MD (NPI 1043245889) is listed in Tamuning, GU by the NPPES registry, as of the registry file of Jun 8, 2026.
- Who they see (not on record): Gale has no record of who Ivan Lowenthal, MD (NPI 1043245889) sees. Ask the office.
- What they help with (not on record): Gale has no record of what Ivan Lowenthal, MD (NPI 1043245889) helps with beyond the registry specialty. Ask the office.
- Languages (not on record): Gale has no record of the languages Ivan Lowenthal, MD (NPI 1043245889) speaks. Ask the office.
- How to book (self-reported): Call (671) 647-4656, the practice phone the NPPES registry lists for Ivan Lowenthal, MD (NPI 1043245889) (Jun 8, 2026).
- Next opening (not on record): Gale has no record of the next opening for Ivan Lowenthal, MD (NPI 1043245889). Ask the office.

## Sources

- NPPES registry (CMS): file of 2026-06-08 · https://npiregistry.cms.hhs.gov/provider-view/1043245889

## About these facts

- Status words: How each fact is known. confirmed = Listed: a named directory, CMS file or state file lists it. inferred = Likely: a price file suggests it; a likely match is a lead, not a listing. self-reported: the clinician said it, to the NPPES registry or on Gale. not-listed: a source that lists every clinician it covers was read and does not list this one; that is not a no. unknown: no record; ask the office.
- Dates: The date the source gives this record (YYYY-MM-DD). It is not the date of the event the record describes: an opt-out states its own start and end dates in its sentence.
- Hash: Changes only when a fact changes, never on a re-check.

This provider is not affiliated with Gale. This listing is compiled from the NPPES public registry (CMS).
Terms: https://www.gale.care/agents#terms